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A structural steel rod has a radius r(=1...

A structural steel rod has a radius r(=10 mm) and a length l(=1 m). When a force F(= 100 kN) is applied, it stretches it along its length. Young's modulus of elasticity of the structural steel is `2.0xx10^(11) Nm^(-2)`. What is the elastic energy density of the steel rod ?

A

1.59 mm

B

2.32 mm

C

0.159 mm

D

3.18 mm

Text Solution

Verified by Experts

The correct Answer is:
A
Hint : `"Strain"=("Stress")/("Young's modulus")`
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